Sigma 10-20 mm F3.5 EX DC HSM lens review
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Sigma announced the release of the new wide angle lens family. Introducing Sigma 10-20 mm F 3.5 EX DC HSM. This super wide angle lens has maximum aperture of F 3.5 troughout the entire zoom range.
With its wide angle view from 102.4 degrees it can produce striking images with exaggerated perspective. The maximum aperture of F3.5 is ideal for indoor shooting and it enables photographers to emphasize the subject. Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Four aspherical lenses provide correction for distortion and allow compact and lightweight construction. The Super Multi-Layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. The incorporation of HSM (Hyper-Sonic Motor) ensures a quiet and high-speed auto focus as well as full-time manual focusing capability
Technical specification:
Lens construction:13 Elements in 10 Groups
Angle of view : 102.4 - 63.8 degrees
Number of diaphragm blades : 7 blades
Minimum aperture : 22
Minimum focusing distance : 24cm / 9.4 in.
Maximum magnification: 1:6.6
Filter size : diameter 82mm
Corresponding AF mounts: SIGMA, CANON, NIKON, PENTAX, SONY
